I've finally finished my latest composition. It was quite a challenge to create this mini planet along with all the elements on it. Lots of trial and error to see what fits and what not. However, I'm pleased with the final result.
Welcome to the New World and enjoy your stay.

I just select my objects, use refine selection and carefully brush the edges when needed. That's when all of these artifacts, "dirt" and even some transparency show up. But I will try with different brush settings and see how that works out.

There's no need to rush things and I'm sure the same people asking for the immediate release of Publisher would be the first ones to raise the pitchforks if something's wrong with it.
You can only speak for yourself.